Virtues of the Prayer Hall (Sutra of the Musalla)

Bukhari :: Book 1 :: Volume 9 :: Hadith 495

Narrated Abu Qatada Al-Ansari:

Allah's Apostle was praying and he was carrying Umama the daughters of Zainab, the daughter of Allah's Apostle and she was the daughter of 'As bin Rabi'a bin 'AbduShams. When he prostrated, he put her down and when he stood, he carried her (on his neck).